منابع مشابه
Need for long-range energy policies.
Amrican Association for the Advancemnt of Science Science serves its readers as a forum for the presentation and discussion of important issues related to the advancement of science, including the presentation of minority or conflicting points of view, rather than by publishing only material on which a consensus has been reached. Accordingly, all articles published in Science-including editoria...
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To compare the general equilibrium effects of common environmental policies, I develop a model of directed technical change with endogenous exploration for depletable fossil resources, endogenous innovation in technologies for accessing renewable resources, and endogenous innovation in technologies for converting fossil and renewable resources into energy services. I find that a supply restrict...
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Proteins are large and complex molecular machines. In order to perform their function, most of them need energy, e.g. either in the form of a photon, as in the case of the visual pigment rhodopsin, or through the breaking of a chemical bond, as in the presence of adenosine triphosphate (ATP). Such energy, in turn, has to be transmitted to specific locations, often several tens of A away from wh...
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In this paper we consider the inverse scattering problem at a fixed energy for the Schrödinger equation with a long-range potential in R, d ≥ 3. We prove that the long-range part can be uniquely reconstructed from the leading forward singularity of the scattering amplitude at some positive energy.
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ژورنال
عنوان ژورنال: Science
سال: 1988
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.240.4856.1121